Lost Wax Casting

A reliable source for Investment Castings information and leading Investment Castings Companies & Manufacturers.

During the process, these wax molds are melted away as referenced in the name given to this technique. Though not always the most economical option, lost wax casting allows for the creation of complex precision parts with little to no need for secondary operations, a fact which in many applications is highly cost effective. Read Moreā€¦

Lost Wax Casting Lost wax casting, also known as investment casting or wax casting, is a popular metallurgical process involving the creation of industrial parts and components through the metallic replication of wax molds.

Leading Manufacturers

Cleveland, OH  |  440-250-1900

For over 30 years, we have provided metal forged products for a wide variety of industries, including the aerospace, military, food service, medical, and automotive industries. Our customers know they can trust our forgings for quality and affordability. We will never try to make you pay more than you should for our products. Contact us by phone or email to find out more!

Request A Quote

Ferralloy Inc. $$$

Waterville, OH  |  419-878-8156

Since 1944 we have been driven to remain a cut above the competition in investment castings and everything we do. We have our own tooling shop filled with state-of-the-art testing machines. We ensure perfect results every time. It is our goal to establish lifelong relationships with our customers that benefit us both. Contact us for more info today!

Request A Quote

Rimer Enterprises, Inc. $$$

Montrose, MN  |  763-675-3169

Established in 1983, Craft Pattern & Mold's foundry uses investment casting, sand casting, rubber plaster casting and spin casting to produce high-quality prototypes or do short-run production. For our customers' castings, we use aluminum, ductile iron, gray iron, zinc or stainless steel.

Request A Quote

Craft Pattern & Mold, Inc. $$$

Honeoye Falls, NY  |  585-624-4894

Here at K&H, we use a fine sand mold process and use fine sand and a urethane binder to produce a broad range of products. We are able to prototype permanent mold applications and produce thicker and irregular wall thicknesses. We offer short lead times for prototypes and low volume production castings as well as other in house value added services. For more information, visit our website or call us today! Our design team looks forward to working with you!

Request A Quote

K&H Precision Products, Inc. $$$

Kenilworth, NJ  |  908-245-2255

Alloy Cast Products, Inc. was incorporated April 3, 1959. Our focus has always been castings and machine finished parts made from exotic cobalt based alloys, primarily our trademark REXALLOY materials. Extending our four decades of COBALT BASED alloy experience to all companies who are seeking solutions to their wear and corrosion problems has made us known throughout the world.

Request A Quote

Alloy Cast Products, Inc. $$$
placeholder image Ferralloy Inc. Rimer Enterprises, Inc. Craft Pattern & Mold, Inc. K&H Precision Products, Inc. Alloy Cast Products, Inc.

The lost wax casting process creates a surface that mirrors the wax form and is thus seamless with no flashing or parting lines as the part is created as one whole piece. Furthermore, as the wax model that gives shape to the mold is the exact size and shape as the part, wax casting provides a highly accurate part.

This manufacturing process has traditionally been used for centuries in the jewelry making industry, though scientific and manufacturing advancements render it essential to a number of applications including dental and medical tools, engines, couplings, fittings, pipes, propellers and in aerospace, automotive, dental, medical, electrical, construction, mining, food processing, telecommunication, plumbing, military, sports, and other industries.

Fortunately, the lost wax casting process is as versatile as its applications and almost any metal that can be cast can be formed in this way from aluminum, copper, and stainless steel to gold, titanium, and brass.

Lost Wax Casting Process Lost Wax Casting Process - Rimer Enterprises, Inc.

Manufacturers with a good working knowledge of the chemical and molecular composition of the materials used to create the wax pattern, molds, and finished parts can manipulate the process to bring out desirable traits such as durability and weight load while diminishing unwanted features. Such details must all begin with the creation of the wax pattern itself, known as the master die. The wax can be carved by hand or machine, though it is not uncommon to use injection molding in more automated settings.

Before processing goes any further any flaws or imperfections must be removed to ensure the mold is as close to the final form as possible. A heated metal tool is then used to attach this die or pattern to a wax rod known as a sprue. In some cases, several hundred patterns may be attached to the same sprue. Such assemblies are known as trees. The sprue or tree is then dipped several times into a ceramic slurry called the investment. Alternatively, the patterns may be placed in a flask that is then filled with the slurry.

When the desired thickness is achieved, the investment is cooled until hard at which point it is placed upside-down into a furnace or oven. This is where the wax is lost. The heat causes the wax to melt and run out leaving a completed mold of the desired part. After being subjected to high temperatures to eliminate residue or moisture, molten metal is poured into the hollow shell. Once this cools, the cast is removed, often destroyed, to reveal the finished part or component.

Lost Wax Casting Informational Video